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Quantitative analysis of the angle dependence of planar Hall effect observed in ferromagnetic GaMnAs film
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2009 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 105, no 7Article in journal (Refereed) Published
Abstract [en]

The angle dependence of the planar Hall effect has been analyzed based on the magnetic free energy including the magnetic anisotropy and the Zeeman effects. The Zeeman effect dominated the magnetic anisotropy in high field and only a single energy minimum is shown in free energy over entire field angle, which leads to the coherent rotation of the magnetization in the form of a single domain state. When the field strength is reduced below 300 Oe, multiple energy minima appear in the angle dependence of free energy due to the increase in the relative importance of magnetic anisotropy. In the low field region, reorientation of magnetization experiences abrupt transition between the free energy minima. The pinning fields obtained from the analysis showed systematic dependence on the strength of external field, which was used to rotate magnetization. We understood such pinning energy dependence in terms of the difference in the free energy density profile for the different field strengths. © 2009 American Institute of Physics.

Place, publisher, year, edition, pages
2009. Vol. 105, no 7
Keyword [en]
Abrupt transitions, Angle dependences, Coherent rotations, Energy minimum, External fields, Field angles, Field strengths, Free-energy densities, High fields, Low-field regions, Magnetic free energies, Pinning energies, Pinning fields, Planar Hall effects, Quantitative analysis, Relative importances, Single-domain state, Zeeman effects, Free energy, Gyrators, Hall effect, Magnetic field effects, Magnetization, Magnets, Spectrum analysis, Magnetic anisotropy
National Category
Condensed Matter Physics
URN: urn:nbn:se:kth:diva-105585DOI: 10.1063/1.3055354ISI: 000266633500428OAI: diva2:573530

References: Prinz, G.A., (1999) Science, 283, p. 330; Wolf, S.A., Awschalom, D.D., Buhrman, R.A., Daughton, J.M., Von Molnar, S., Roukes, M.L., Chtchelkanova, A.Y., Treger, D.M., (2001) Science, 294, p. 1488; Ohno, H., Chiba, D., Matsukura, F., Omiya, T., Abe, E., Dietl, T., Ohno, Y., Ohtani, K., (2000) Nature (London), 408, p. 944; Furdyna, J.K., (1982) J. Appl. Phys., 53, p. 7637; Munekata, H., Ohno, H., Vonmolnar, S., Segmuller, A., Chang, L.L., Esaki, L., (1989) Phys. Rev. Lett., 63, p. 1849; Hayashi, T., Tanaka, M., Nishinaga, T., Shimada, H., (1997) J. Appl. Phys., 81, p. 4865; Tang, H.X., Kawakami, R.K., Awschalom, D.D., Roukes, M.L., (2003) Phys. Rev. Lett., 90, p. 107201; Sasaki, Y., Liu, X., Furdyna, J.K., Palczewska, M., Szczytko, J., Twardowski, A., (2002) J. Appl. Phys., 91, p. 7484; Hrabovsky, D., Vanelle, E., Fert, A.R., Yee, D.S., Redoules, J.P., Sadowski, J., Kanski, J., Ilver, L., (2002) Appl. Phys. Lett., 81, p. 2806; Shin, D.Y., Chung, S.J., Lee, S., Liu, X., Furdyna, J.K., (2007) Phys. Rev. B, 76, p. 035327; Stoner, E.C., Wohlfarth, E.P., (1948) Philos. Trans. R. Soc. London, Ser. A, 240, p. 599; Shin, D.Y., Chung, S.J., Lee, S., Liu, X., Furdyna, J.K., (2007) IEEE Trans. Magn., 43, p. 3025; Kim, J., Shin, D.Y., Yoo, T., Kim, H., Lee, S., Liu, X., Furdyna, J.K., (2008) J. Appl. Phys., 103, pp. 07D101; Son, H., Chung, S.J., Yea, S.Y., Lee, S., Liu, X., Furdyna, J.K., (2008) J. Appl. Phys., 103, pp. 07F313; Cowburn, R.P., Gray, S.J., Ferre, J., Bland, J.A.C., Miltat, J., (1995) J. Appl. Phys., 78, p. 7210; Okamoto, K., (1983) J. Magn. Magn. Mater., 35, p. 353

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Available from: 2012-11-30 Created: 2012-11-22 Last updated: 2013-05-13Bibliographically approved

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